Hoof-pad.



UNITED STATES PATENT Patented July 21, 1903.

OFFICE.

l-l 00F"- PAD'.

SPECIFICATION forming part of Letters Patent N o.- 7 34,301, dated jJdly 1, 1 903.

v Application filed December 3,1902. Serial No. 13311757. (No model.)

To a whom it may concern:

Be it known that 1, JOHN CAMPBELL, a subject of the King of Great Britain, and a resi-f dent of the city of New York, borough of Manhattan, in the county and State of'New York, have invented a new and Improved Hoof-Pad, of which the following is a full,

clear, and exact description.

The invention relates to pads for use with horseshoes to act as cushions, and more par-- ticularly to pads of the type employed with shoes that terminate at the quarter The object of the invention is to provide a pad of the type indicated which will tend to expand the hoof and will yield in a downward direction to the pressure of the frog as the.

latter grows.

A further object is to combine with solid heel portions a pneumatic. front portion and. provide a novel arrangement forr'enewing the air in the hollow of the hoof. I

The novel features of the invention willbe hereinafter particularly described and then defined in the claim. p

The practical embodiment of the invention is represented in the accompanying drawings, forming a part of thisspecification", in

which similar characters of; reference indi cate corresponding parts inall theviews.

Figure 1 is a bottom plan view of a pad embodying my invention. Fig. 2 is a longitudinal section on the line 2 2 of Fig. 1. Fig. 3 is an inverted View in perspective of the rubber portion or pad proper with apart broken away, and Fig. lis'a section on the line 4 4 of Fig. 1.

The leather base or backing A is of the} usual shape and of a size to cover and form a closure of the hoof, and to the face of the same is secured, as by cement, the rubber cushion B, forming the pad proper. The

cushion B is in general of horseshoe shape;

the center of the pad beingopen, the open portion extending to the heel or rear end; At the sides-of the open cen-i V served that the cushionis thickened at the we, as at 5, to increase the strength of the oushionat this point; The rear wall of the pneumatic chamber is formed with an orifice b leading to the outside and through which air is forced by the alternate compression and expansion of the pneumatic portion when the pad is in use. Similarly the leather backing A has at the front a series of apertures a, whereby communication is established between the pneumatic chamber and the hollow of the hoof.

the blocks in response to the pressure exerted by the growing frog. I find this arrangement of spaced solid blocks extending laterally to the'outside edges of the pad serve in practice to expand the hoof at the heel, and thereby resist any tendency ofthe hoof to contract.

Having thus described my invention, I claim as new and desire to secure-by 'L'etters Patentr The herein-described pad,'. comprising a leather backing and a rubber cushion thereon ofhorseshoe formleaving an open central portion extendingfrom the heel toward the frontand defined at the front by the curved 'front of the oushion;'thesaid central portion .of the backing being imperforate, said cush- .ion having spaced solid heel-blocks extend- :ing'laterally to the outside edges of the-pad and beveled at the quarters, and a curved frontp'ortion, said curved portion being hollow and the outer or lower wall thereof being of increasedthicknessat the toe and having an opening..in itsrear wall, and the said backing having a series ofa'pertures leading jtothe int'erior of the hollow portiongof' the cushion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN CAMPBELL.

Witnesses:

J. L. MCAULIFFE, EVERARD BOLTON MARSHALL.

Thus through the medium of the apertures a and b theair in the hoof will 

